Sliding sleeves, da ake kuma kira bushings ko sleeve bearings, muhimman sassa ne masu tsananin daidaito da siffar silinda a cikin injinan masana'antu da tsarin motoci, suna da aiyuka na asali kamar ɗaukar nauyi, juriya ga lalacewa, watsawa iko da kuma kare sandar. HLW ta ƙware a sarrafa CNC mai daidaito sosai na silinda masu zamewa don aikace-aikace daban-daban, tana haɗa fasahohin sarrafawa na zamani, zaɓin kayan aiki na musamman, tsauraran kulawar inganci da ingantattun hanyoyin samarwa don samar da sassa masu zamewa masu aiki mai ƙarfi da ɗorewa waɗanda suka cika buƙatun masu tsauri na masana'antu masu nauyi, kera motoci da kayan aiki masu daidaito. Wannan labarin yana bayyana dalla-dalla hanyoyin sarrafa CNC, zaɓuɓɓukan kayan aiki, ƙayyadaddun inganci da ingantattun mafita na sarrafa silinda masu zamewa.
Muhimman Tsare-tsaren Injin CNC don Rigar Mika
Aikin CNC na silivunan zamewa ya ƙunshi jerin matakai masu daidaito da haɗe-haɗe, inda ake keɓance kowanne mataki bisa ga yanayin amfani da sashin, rikitarwar tsari da buƙatun daidaito. Ga silivunan zamewa na tsarin asali, kamar silivunan haɗa giyar, aikin injin yana mai da hankali kan daidaiton girma da daidaiton siffa, wanda ya ƙunshi matakai huɗu masu muhimmanci: Juya CNC Yana sarrafa sigogin lathe daidai don sarrafa zagayen waje, ramukan ciki da fuskokin ƙarshe, yana tabbatar da daidaiton girman asali na guntun sleeve; Hobban giyar yana amfani da ka'idar hanyar samarwa, ta amfani da madaidaicin rabo na watsawa tsakanin Hob da blank don samar da bayanan siffar hakora na involute masu daidaito sosai don sassan watsawar iko; niƙa Yana siffanta fannoni na musamman na murfin hannu domin biyan bukatun haɗawa da daidaita matsayi; Hako Yana ƙirƙirar ramuka masu daidaito a wurare da aka kayyade don sauƙaƙe haɗawa da daurewa daga baya. Ana tsara kowane mataki ƙarƙashin tsauraran kulawar inganci daga ƙwararrun ma'aikatan fasaha don tabbatar da haɗin kai mara matsala da bin ƙa'idodin ƙera na ƙima.
Don silis na zamewa masu rikitarwa sosai, kamar silis na sauya giyar akwatin mota—muhimman sassa da ke da alhakin sauya giya da watsa ƙarfi—HLW na amfani da ingantaccen tsarin haɗin injina don magance matsalolin injin na gargajiya mai matakai da yawa: shirya faranti (nasa + dumama) don fara siffa da kawar da damuwar ciki; Gyaran farko na lathe na CNC don sarrafa zagaye na ciki/na waje, fuskokin ƙarshe da ramukan ma'auni, yana tabbatar da daidaiton kusurwa ≤0.005mm tare da saurin spindle na 1200–1500rpm da saurin ciyarwa na 0.05–0.08mm/r; broaching na daidaito a matsayin aikin asali, amfani da injin broching na musamman don cimma kera a lokaci guda na splines na ciki, ramukan jagorar canji da makullin daidaitawa tare da ƙarfin jan 50KN da saurin yanke na 4-8m/min, yana kawar da karkatar daidaitawa da ke faruwa sakamakon matakai da dama; bayanan sarrafawa (cire ƙuraje + tsabtacewa) don kawar da nakasu a saman; gwajin daidaito tare da CMM da ma'aunin spline don gano cikakken girma da juriya ta siffa; da ƙarshe, maganin carburizing da quenching don ƙara juriya ga lalacewa da ƙarfafa tsarin gine-gine. Wannan tsarin haɗe-haɗe ya inganta yawan aikin injina da daidaiton tarin samarwa sosai idan aka kwatanta da hanyoyin gargajiya.
Zaɓin kayan inganci na musamman don gilashin silayi
Zaɓin kayan murfin silinda mai zamewa yana dogara ne akan nauyin aikace-aikace, sauri, zazzabi na aiki da yanayin muhalli, inda HLW ke ba da cikakken zaɓi na kayan aiki masu babban aiki da haɗaɗɗun ƙarfe na tagulla na musamman don dacewa da buƙatun amfani daban-daban, kowannensu na da halaye na musamman wajen sarrafawa da aiki:
- Haɗin tagulla da tagulla mai launin zinariya (wanda aka fi amfani da su don silivunan zamewa): Ciki har da tagulla aluminium C95400, tagulla tin mai gubar C93200, tagulla beryllium C17200 da tagulla mai ramuka da aka cika da mai, da kuma hadadden ƙarafa da aka zuba kamar ZCuSn5Zn5Pb5, C86300 da ZCuPb10Sn10. Waɗannan haɗaɗɗun ƙarafa suna haɗa ƙarfin juriya ga lalacewa, santsi na halitta, ƙarfin ɗaukar zafi mai yawa da juriya ga tsatsa, tare da ƙarfin ɗaukar nauyi har zuwa 7000 psi da zafin aiki na ci gaba har zuwa 250°C. Suna da dacewa don aikace-aikace masu nauyi da gogayya mai ƙarfi a ma'adinai, ƙarfe, kayan ruwa da na hydraulic, kuma za a iya sarrafa su ta hanyar zuba (centrifugal, yashi, ƙirar ƙarfe), juya, niƙa da niƙa, tare da maganin zafi (annealing, maganin narkewa) don inganta halayen injin.
- Kai da Karfe Mai Hadadde: Karfe na carbon, karfe mai haɗe-haɗe (misali, 20CrMnTi don akwatin gear na motoci) da bakin ƙarfe ana amfani da su a wuraren da ake buƙatar ƙarfi mai yawa, ɗaukar nauyi mai yawa ko yanayi mai lalata. Ana iya yin maganin zafi ga karfe mai haɗe-haɗe (quenching, tempering, case hardening) don ƙara tauri da juriya ga lalacewa, yayin da bakin ƙarfe shine zaɓi na farko wajen sarrafa abinci da aikace-aikacen ruwa saboda kyakkyawan hana tsatsa.
- Filastik na InjiniyaNylon, PEEK da sauran filastik sun dace da aikace-aikace masu nauyi kaɗan da sauƙin nauyi waɗanda ke buƙatar juriya ga sinadarai ko wutar lantarki, suna ba da madadin mai arha ga yanayi da ba na aiki mai nauyi ba.
HLW kuma tana ba da sabis na tsara kayan musamman, kuma za ta iya ba da shawarar matakan haɗin ƙarfe mafi juriya ga gogewa bisa ga yawan aiki na abokin ciniki, buƙatun aiki da yanayin aiki, don tabbatar da tsawon rayuwar sassa.
Takamaiman ƙa'idodin inganci da kulawar inganci don murfin silinda masu zamewa
Daidaito da ingancin saman sune ginshiƙan sarrafa bututun rufi mai zamewa, kuma HLW tana bin ƙa'idodin ƙasa da ƙasa da buƙatun juriya na musamman don aiwatar da tsauraran kulawar inganci a duk tsarin samarwa, tare da manyan ƙayyadaddun inganci waɗanda suka haɗa da:
- Haƙƙoƙin matakan girma: Kula mai tsauri da diamita na ciki/na waje (ID/OD), daidaiton matsayi da zagaye, bisa ga ƙa'idodin ISO 286 fit (daidaitaccen tazara H7/h6 na gama gari don sandunan daidaito). Don murfin zamewa na mota masu daidaito sosai, buƙatun juriya sun kai matakin IT7, tare da canjin girma da aka sarrafa cikin ≤±0.003 mm don tabbatar da daidaiton samarwa. Ana samun ƙarin tsauraran iyaka don buƙatun musamman, tare da ingantaccen ƙwararren injiniya don gujewa yin aiki fiye da kima da kashe kuɗaɗen da ba su da amfani.
- Kammala saman: Diamita na ciki na silivunan zamewa an goge shi daidai zuwa ƙurar saman Ra 0.4–1.6 µm (ko Ra 16–32 µin don haɗaɗɗun tagulla), tare da tsarin saman da aka inganta don riƙe fim ɗin man shafawa mai daidaito, rage gogayya da lalacewa tsakanin sandunan haɗi, da tabbatar da aiki cikin shiru na injinan daidaito. HLW na amfani da na'urorin profilometer na ƙwararru don tabbatar da ƙarewar saman kuma yana ƙera ramin mai mai lanƙwasa ko ramin mai giciye a kusurwa 30–45° don inganta aikin shafawa.
- Takardun inganci da gwajiDon tabbatar da bin diddigi da cika ƙa'idoji, HLW tana samar da cikakken tarin takardun inganci ga dukkan kayayyakin sliding sleeve, ciki har da Takardar Shaidar Gwajin Kayan (MTC) don tabbatar da sinadaran kemikal, Rahoton Binciken CMM don auna girma daidai sosai, Rahoton Gwajin Tattalin (Hardness Test Report) don sassan da aka yi wa maganin zafi, da takardun shaida na bin ƙa'idojin RoHS/REACH don buƙatun kasuwar duniya. Bugu da ƙari, ana aiwatar da binciken samfurin guda 100 yayin samarwa, tare da adana duk bayanan gwaji don bin diddigi.
HLW kuma yana ƙara ɗorewar murfin zamewa ta hanyar fasahohin sarrafa bayan-aiwatarwa: maganin saman irin su rufewar zinc (ƙin tsatsa), rufewar chrome mai tauri (ƙarfin juriya ga gogewa mai tsanani) da oxide baki (kammala mai laushi); da siffofin ƙira masu shafawa da kansu kamar tsarin ramuka masu ɗauke da mai da sandunan graphite da aka saka a ciki, wanda ke kawar da buƙatar shafawa akai-akai da rage kuɗin kulawa.
Mafita na sarrafa injina da aka inganta da ayyukan samarwa masu inganci
Da nufin magance matsalolin da ake fuskanta a aikin sarrafa sliding sleeve na gargajiya—kamar ƙarancin daidaito, rashin daidaiton samarwa a lokaci guda, yawan ɓarnar kayan aiki da ƙarancin inganci—HLW ta ƙirƙiri injin broching na musamman mai daidaito sosai don ƙananan da matsakaitan sliding sleeves (diamita na waje ≤120mm), wanda ke aiwatar da haɗaɗɗiyar siffa a lokaci guda ga tsaruka masu rikitarwa kamar splines na ciki da ramukan canji. Wannan mafita da aka inganta ta samu manyan ci gaba idan aka kwatanta da hanyoyin gargajiya: lokacin sarrafa kashi guda ya ragu daga mintuna 8–12 zuwa mintuna 3–5 (ƙaruwa a inganci na 60%), bambancin girma ya ragu da 70%, kuma yawan sharar ya ragu daga ≥15% zuwa ≤0.3% (ƙarancin 98%), kuma an rage jimillar kuɗin sarrafawa da 40%. Yana magance matsalolin karkatar daidaitawa, ƙurajen saman da tsayawar haɗawa a cikin sarrafa injin na gargajiya, kuma ya dace da samarwa da yawa na murfin zamewa na akwatin saurin mota da yawan fitarwa na shekara-shekara na guda 100,000.
HLW tana ba da sabis na samarwa da na bayan-tallace-tallace masu sassauci da inganci don sarrafa bututun silinda masu zamewa: tana tallafawa ƙera kayayyaki na musamman a ƙananan adadi da kuma samarwa mai yawa, ba tare da ƙaramin adadin oda ba; tana ba da zaɓuɓɓukan isarwa cikin sauri ciki har da jigilar gaggawa ta kwanaki 3 don odar gaggawa, isarwa ta al'ada a cikin kwanaki 20 da isarwa ta tarin kaya a cikin kwanaki 20-30, tare da aikawa akan lokaci ga kayayyakin da ke cikin ajiya; daidaita mafita na marufi (allunan 15mm masu ƙauri da ba a yi musu maganin ƙwari ba don fitarwa, allunan 10mm na al'ada da ba a yi musu maganin ƙwari ba ko akwatin katon don sayarwa a cikin gida) don tabbatar da jigilar lafiya. Muna ba da tabbacin bin ƙa'idodin kayan aiki da girma daidai, tare da maye gurbin kyauta ko maidawa ba tare da sharadi ba ga duk samfuran da ba su dace ba.
Tuntuɓi HLW don bukatun ku na na'urar CNC na musamman na murfin zamewa.
HLW abokin hulɗa ne mai amana wajen sarrafa CNC mai daidaito sosai na bututun silifa masu zamewa, tare da ƙwarewa mai yawa a sarrafa nau'ikan bututun silifa masu zamewa daban-daban don masana'antu masu nauyi, motoci, na'urorin hydraulic, na'urorin ruwa da na hakar ma'adinai. Muna haɗa fasahohin sarrafawa na zamani, zaɓin kayan aiki na inganci, tsauraran matakan kulawa da inganci da ingantattun mafita na samarwa don samar da sassan murfin silinda masu zamewa masu aiki mai ƙarfi da ɗorewa waɗanda suka cika buƙatun aikinku na musamman. Ko kuna buƙatar murfin silinda masu zamewa na al'ada, murfin gine-gine masu sarkakiya na musamman ko samarwa mai yawa na murfin akwatin gear na mota, ƙungiyarmu ta ƙwararru za ta iya samar da mafita guda ɗaya na sarrafa injin daga inganta ƙira har zuwa isar da samfurin ƙarshe.
Don ƙarin bayani game da ayyukan mu na CNC na silinda mai zamewa, don neman ƙididdiga ta musamman ko don tuntuɓar mu game da zaɓin kayan aiki da tsarin aiki, da fatan za ku tuntube mu a 18664342076 ko aiko tambayoyinku da zanen injiniya ta imel zuwa info@helanwangsf.com.
